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SHAPING YOUR MUNICIPALITY’S ENERGY FUTURE TOGETHER
Generate additional revenue for your municipality with utility-scale battery storage systems – feasible on sites as small as 1,500 m².
THE ENERGY TRANSITION STARTS LOCALLY
Utility-scale battery storage systems are becoming increasingly important for municipalities as part of the energy supply of the future. They store surplus electricity and make it available when needed. This helps stabilize the power grid, supports the expansion of renewable energy, and at the same time creates new economic opportunities for your municipality.

THIS IS WHAT A BATTERY STORAGE SYSTEM LOOKS LIKE IN PRACTICE:
Watch the video to see how a system is designed and built – from the individual components and technical infrastructure to its integration into the power grid.
MORE VIDEOS
Visit our YouTube channel:
BATTERY STORAGE PROJECT IN PRACTICE:
THE BENEFITS FOR YOUR MUNICIPALITY

FINANCIAL REVENUE

CLEAR RESPONSIBILITIES

EFFICIENT LAND USE
Business tax revenue strengthens the municipal budget – with no investment costs.
We take full responsibility for the investment, construction, and operation – with no financial commitment required from your municipality.
A small land footprint and seamless integration into the surrounding environment maximize the contribution to the energy transition.



REGIONAL ENERGY SECURITY
ACHIEVING CLIMATE TARGETS
LONG-TERM PARTNERSHIP
Utility-scale battery storage systems help stabilize the power grid and complement existing wind and solar PV installations – supporting a secure and reliable energy supply.
Receive a CO₂ certificate to support your climate targets and position your municipality as a pioneer in the region.
green flexibility develops, builds, and operates battery storage systems over the long term, supporting municipalities for decades as a reliable local partner.
green flexibility takes responsibility in the local community:
Through local sponsorships, we support clubs, initiatives, and charitable projects – because we are here to stay and to shape the energy future together with your municipality for the long term.
SOCIAL ENGAGEMENT

MUNICIPAL PARTNERSHIP
Successful implementation is built on trust, transparency, and a clearly structured collaboration. Utility-scale battery storage systems offer municipalities new opportunities to make their energy supply more sustainable and future-ready. Insights from municipal projects show how these solutions are developed and the contribution they can make to the energy transition.

THE ENERGY TRANSITION CAN ONLY SUCCEED TOGETHER – Mayor Lars Leveringhaus of Obergünzburg and Christoph Lienert of green flexibility demonstrate how openness and a partnership based on mutual respect can create new opportunities for municipalities and local communities.
FAQ
Häufig gestellte Fragen
How does large-scale battery storage work?
A large-scale battery storage system stores surplus electricity from renewable sources such as wind and solar power and feeds it back into the grid when needed. When electricity demand is high or renewable generation fluctuates, the stored energy is discharged to help stabilize the power grid and ensure a reliable electricity supply.
How large does a battery storage system need to be for a municipality?
The size of a battery storage system for a municipality depends on local electricity demand and the amount of renewable energy to be stored. Typically, battery storage systems have a capacity of several megawatt-hours (MWh) to support grid stability and balance fluctuations. The optimal size is determined through a detailed analysis of local energy demand and grid requirements.
What permits are required for a battery storage system?
For the construction and operation of a battery storage system, a building permit and, in certain cases, approval under the German Federal Immission Control Act (BImSchG) may be required. Depending on the size and location of the project, additional environmental assessments or approvals under the German Renewable Energy Sources Act (EEG) may also be required. The specific permitting requirements depend on the storage capacity, project location, and applicable local regulations.
How much does large-scale battery storage cost for a municipality?
green flexibility fully covers all costs associated with the investment, construction, and operation of the large-scale battery storage system. Your municipality bears no financial obligations.
Can municipalities generate revenue with battery storage?
Yes. Municipalities can generate additional revenue through local trade tax revenues, as a dedicated project company is established in the municipality. In addition, the municipality does not incur any investment costs, as green flexibility fully finances, builds, and operates the battery storage system.
How safe is large-scale battery storage?
Our large-scale battery storage systems are designed to meet high safety standards. We prioritize safety through decades of experience in the battery industry, the use of high-quality components, and strict compliance with all applicable regulations.The systems use lithium-ion batteries with sealed lithium iron phosphate (LFP) cells. Due to their chemistry, mechanical enclosure, and integrated safety features, LFP cells offer a high level of safety, performance, and durability, particularly with regard to fire safety. The battery system is sealed, preventing gases from escaping.

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